A.= δεινός, dread, horrible, freq. in Hom., of feelings, ἄχος, χόλος, τρόμος, κάματος, ὀϊζύς, Il.4.169, 22.94, 7.215, 10.312, Od.15.342; of states and actions, as δηϊοτής, πόλεμος, μόρος, Il. 5.409, Od.8.519 (Sup.), Il.18.465; of persons, dread, terrible, esp. of Zeus, “αἰνότατε Κρονίδη” Il.4.25, etc.; σύ γ᾽ αἰνοτάτη, of Pallas, 8.423; of monsters or animals, “πέλωρα” Od.10.219; “ὄφις” Hes.Fr.14; “λῖς” Theoc.25.252.
II. Adv. -νῶς terribly, i.e. strangely, exceedingly, Il.10.38; “ἔοικέ τινι” 3.158, Od.1.208; “φιλέεσκε” 1.264; “ἐπὶ γόνυ κέκλιται” A.Pers.930 (lyr.); “φεύγειν τι” Hdt.4.76; with Adj., αἰ. κακός terribly bad, Od.17.24; “αἰ. πικρός” Hdt.4.52; τῆς Σκυθικῆς αἰ. ἀξύλου ἐούσης ib.61:—neut. pl. αἰνά as Adv., Il.1.414: Sup. “-ότατον” 13.52.